72 duster blower motor resistor

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http://www.forabodiesonly.com/mopar/showthread.php?p=1970088617

The resistor has nothing to do with high speed, the fuse supplies the switch. Does the fuse have power?

Instrument panel wiring is page 8-150

Fuse panel is page 8-151

Look at the blower switch, find wire C1-14BK, which means wire C1, size 14, BlacK. It goes down off the page to the fuse panel (page 8-151), and comes into the heater fuse. This fuse should be "hot" if the fuse is good, and when the key is in "run" or accessory